docs: Add a notch to the default square.stl test object

Place a small notch on one side of the square.  The notch provides
interesting information on the extruder performance, and it makes it
easier to compare with previous prints of the object.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

docs/prints/square.scad

@@ -11,4 +11,6 @@ difference() {
   cube([square_size, square_size, square_height]);
   translate([square_width, square_width, -1])
     cube([square_size-2*square_width, square_size-2*square_width, square_height+2]);
+  translate([-.5, square_size/2 - 4, -1])
+    cube([1, 2, square_height+2]);
 }

docs/prints/square.stl

@@ -2,6 +2,20 @@ solid OpenSCAD_Model
   facet normal -1 0 0
     outer loop
       vertex 0 0 0
+      vertex 0 26 5
+      vertex 0 26 0
+    endloop
+  endfacet
+  facet normal -1 -0 0
+    outer loop
+      vertex 0 26 5
+      vertex 0 0 0
+      vertex 0 0 5
+    endloop
+  endfacet
+  facet normal -1 0 0
+    outer loop
+      vertex 0 28 0
       vertex 0 60 5
       vertex 0 60 0
     endloop
@@ -9,8 +23,8 @@ solid OpenSCAD_Model
   facet normal -1 -0 0
     outer loop
       vertex 0 60 5
-      vertex 0 0 0
-      vertex 0 0 5
+      vertex 0 28 0
+      vertex 0 28 5
     endloop
   endfacet
   facet normal 0 0 1
@@ -30,7 +44,7 @@ solid OpenSCAD_Model
   facet normal 0 0 1
     outer loop
       vertex 5 55 5
-      vertex 0 60 5
+      vertex 0.5 28 5
       vertex 5 5 5
     endloop
   endfacet
@@ -41,6 +55,20 @@ solid OpenSCAD_Model
       vertex 60 60 5
     endloop
   endfacet
+  facet normal 0 0 1
+    outer loop
+      vertex 0 28 5
+      vertex 5 55 5
+      vertex 0 60 5
+    endloop
+  endfacet
+  facet normal 0 0 1
+    outer loop
+      vertex 5 55 5
+      vertex 0 28 5
+      vertex 0.5 28 5
+    endloop
+  endfacet
   facet normal -0 0 1
     outer loop
       vertex 55 5 5
@@ -55,6 +83,20 @@ solid OpenSCAD_Model
       vertex 55 5 5
     endloop
   endfacet
+  facet normal -0 0 1
+    outer loop
+      vertex 0.5 26 5
+      vertex 5 5 5
+      vertex 0.5 28 5
+    endloop
+  endfacet
+  facet normal -0 0 1
+    outer loop
+      vertex 0 26 5
+      vertex 5 5 5
+      vertex 0.5 26 5
+    endloop
+  endfacet
   facet normal 0 0 1
     outer loop
       vertex 5 5 5
@@ -66,7 +108,7 @@ solid OpenSCAD_Model
     outer loop
       vertex 0 0 5
       vertex 5 5 5
-      vertex 0 60 5
+      vertex 0 26 5
     endloop
   endfacet
   facet normal 1 -0 0
@@ -111,11 +153,11 @@ solid OpenSCAD_Model
       vertex 55 5 0
     endloop
   endfacet
-  facet normal -0 0 -1
+  facet normal 0 0 -1
     outer loop
+      vertex 0.5 28 0
       vertex 5 5 0
-      vertex 0 0 0
-      vertex 5 55 0
+      vertex 0.5 26 0
     endloop
   endfacet
   facet normal 0 0 -1
@@ -125,6 +167,20 @@ solid OpenSCAD_Model
       vertex 60 0 0
     endloop
   endfacet
+  facet normal 0 0 -1
+    outer loop
+      vertex 0 26 0
+      vertex 5 5 0
+      vertex 0 0 0
+    endloop
+  endfacet
+  facet normal 0 0 -1
+    outer loop
+      vertex 5 5 0
+      vertex 0 26 0
+      vertex 0.5 26 0
+    endloop
+  endfacet
   facet normal 0 0 -1
     outer loop
       vertex 55 55 0
@@ -139,6 +195,20 @@ solid OpenSCAD_Model
       vertex 55 55 0
     endloop
   endfacet
+  facet normal 0 0 -1
+    outer loop
+      vertex 5 5 0
+      vertex 0.5 28 0
+      vertex 5 55 0
+    endloop
+  endfacet
+  facet normal 0 0 -1
+    outer loop
+      vertex 0 28 0
+      vertex 5 55 0
+      vertex 0.5 28 0
+    endloop
+  endfacet
   facet normal 0 0 -1
     outer loop
       vertex 5 55 0
@@ -150,7 +220,7 @@ solid OpenSCAD_Model
     outer loop
       vertex 0 60 0
       vertex 5 55 0
-      vertex 0 0 0
+      vertex 0 28 0
     endloop
   endfacet
   facet normal 0 -1 0
@@ -195,20 +265,6 @@ solid OpenSCAD_Model
       vertex 55 5 5
     endloop
   endfacet
-  facet normal 0 1 -0
-    outer loop
-      vertex 55 5 0
-      vertex 5 5 5
-      vertex 55 5 5
-    endloop
-  endfacet
-  facet normal 0 1 0
-    outer loop
-      vertex 5 5 5
-      vertex 55 5 0
-      vertex 5 5 0
-    endloop
-  endfacet
   facet normal 0 -1 0
     outer loop
       vertex 5 55 0
@@ -223,4 +279,60 @@ solid OpenSCAD_Model
       vertex 55 55 0
     endloop
   endfacet
+  facet normal 0 1 -0
+    outer loop
+      vertex 55 5 0
+      vertex 5 5 5
+      vertex 55 5 5
+    endloop
+  endfacet
+  facet normal 0 1 0
+    outer loop
+      vertex 5 5 5
+      vertex 55 5 0
+      vertex 5 5 0
+    endloop
+  endfacet
+  facet normal -1 0 0
+    outer loop
+      vertex 0.5 26 0
+      vertex 0.5 28 5
+      vertex 0.5 28 0
+    endloop
+  endfacet
+  facet normal -1 -0 0
+    outer loop
+      vertex 0.5 28 5
+      vertex 0.5 26 0
+      vertex 0.5 26 5
+    endloop
+  endfacet
+  facet normal 0 -1 0
+    outer loop
+      vertex 0 28 0
+      vertex 0.5 28 5
+      vertex 0 28 5
+    endloop
+  endfacet
+  facet normal 0 -1 -0
+    outer loop
+      vertex 0.5 28 5
+      vertex 0 28 0
+      vertex 0.5 28 0
+    endloop
+  endfacet
+  facet normal 0 1 -0
+    outer loop
+      vertex 0.5 26 0
+      vertex 0 26 5
+      vertex 0.5 26 5
+    endloop
+  endfacet
+  facet normal 0 1 0
+    outer loop
+      vertex 0 26 5
+      vertex 0.5 26 0
+      vertex 0 26 0
+    endloop
+  endfacet
 endsolid OpenSCAD_Model